| /******************************************************************************* |
| * Copyright (c) 2005, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.tests.performance; |
| |
| import org.eclipse.jface.util.Assert; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| |
| /** |
| * The RefreshTestContentProvider is the content |
| * provider for refresh tests. |
| * |
| */ |
| public class RefreshTestContentProvider implements IStructuredContentProvider { |
| |
| static int seed = 1; |
| static TestElement[] allElements; |
| public static int ELEMENT_COUNT = 10000; |
| TestElement[] currentElements; |
| |
| static{ |
| allElements = new TestElement[ELEMENT_COUNT]; |
| for (int i = 0; i < ELEMENT_COUNT; i++) { |
| allElements[i] = new TestElement(i); |
| } |
| } |
| |
| void preSortElements(Viewer viewer, ViewerSorter sorter){ |
| sorter.sort(viewer,currentElements); |
| |
| } |
| |
| public RefreshTestContentProvider(int size){ |
| Assert.isTrue(size <= ELEMENT_COUNT); |
| setSize(size); |
| } |
| |
| /** |
| * Set the size of the amount we are currently displaying |
| * to size. |
| * @param size |
| */ |
| public void setSize(int size) { |
| |
| currentElements = new TestElement[size]; |
| for (int i = 0; i < currentElements.length; i++) { |
| currentElements[i] = allElements[i]; |
| } |
| |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return currentElements; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| currentElements = null; |
| |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| //Do nothing here |
| } |
| |
| /** |
| * Restore the elements to thier old poorly sorted |
| * state. |
| * |
| */ |
| public void refreshElements() { |
| for (int i = 0; i < ELEMENT_COUNT; i++) { |
| currentElements[i] = new TestElement(i + seed); |
| } |
| seed += 257; |
| |
| |
| } |
| |
| public void cloneElements(){ |
| currentElements = (TestElement [] )currentElements.clone(); |
| } |
| |
| } |